YARA · Mandiant red team tool countermeasures

FIREEYE_RT_APT_Hacktool_Win64_EXCAVATOR_1

No description has been set in the source file - FireEye-RT

APT / threat actorMandiant red team tool countermeasuresBSD 2-Clause LicenseCompiles with YARA-X

Author: FireEye
Date: 2020-11-30
Modified: 2020-12-09
Score / Quality: 75 / 75

What this rule detects

No description has been set in the source file - FireEye-RT

Targets: Windows PE.

It defines 4 patterns (2 text, 2 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar

apt-hacktool-win64-excavator-1.yarBSD 2-Clause License

rule FIREEYE_RT_APT_Hacktool_Win64_EXCAVATOR_1 : FILE
{
	meta:
		description = "No description has been set in the source file - FireEye-RT"
		author = "FireEye"
		id = "e593b589-747d-53c2-a39a-57485e4f7641"
		date = "2020-11-30"
		date = "2020-11-30"
		modified = "2020-12-09"
		reference = "https://github.com/mandiant/red_team_tool_countermeasures/"
		source_url = "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/EXCAVATOR/production/yara/APT_HackTool_Win64_EXCAVATOR_1.yar#L4-L19"
		license_url = "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
		hash = "6a9a114928554c26675884eeb40cc01b"
		logic_hash = "aa06628ddef0f95c4217b97a3476a0ee12e00d04c4827a512730598f3c80f1f6"
		score = 75
		quality = 75
		tags = "FILE"
		rev = 3

	strings:
		$api1 = "PssCaptureSnapshot" fullword
		$api2 = "MiniDumpWriteDump" fullword
		$dump = { BA FD 03 00 AC [0-8] 41 B8 1F 00 10 00 48 8B ?? FF 15 [4] 85 C0 0F 85 [2] 00 00 [0-2] 48 8D 05 [5] 89 ?? 24 30 ( C7 44 24 28 80 00 00 00 48 8D 0D ?? ?? ?? ?? | 48 8D 0D ?? ?? ?? ?? C7 44 24 28 80 00 00 00 ) 45 33 C9 [0-5] 45 33 C0 C7 44 24 20 01 00 00 00 BA 00 00 00 10 [0-10] FF 15 [4] 48 8B ?? 48 83 F8 FF ( 74 | 0F 84 ) [1-4] 48 8B 4C 24 ?? 48 8D 44 24 ?? 48 89 44 24 30 ( 41 B9 02 00 00 00 | 44 8D 4D 02 ) ?? 89 ?? 24 28 4C 8B ?? 8B [2] 89 ?? 24 20 FF 15 [4] 48 8B ?? FF 15 [4] 48 8B ?? FF 15 [4] FF 15 [4] 48 8B 54 24 ?? 48 8B C8 FF 15 }
		$lsass = { 6C 73 61 73 [6] 73 2E 65 78 [6] 65 }

	condition:
		(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of them
}

Strings (4 patterns)

Identifier	Type	Value	Modifiers
$api1	text	"PssCaptureSnapshot"	fullword
$api2	text	"MiniDumpWriteDump"	fullword
$dump	hex	{ BA FD 03 00 AC [0-8] 41 B8 1F 00 10 00 48 8B ?? FF 15 [4] 85 C0 0F 85 [2] 00 00 [0-2] 48 8D 05 [5] 89 ?? 24 30 ( C7 44 24 28 80 00 00 00 48 8D 0D ?? ?? ?? ?? …
$lsass	hex	{ 6C 73 61 73 [6] 73 2E 65 78 [6] 65 }

Condition

(( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x020B ) ) and all of them

In plain words (Heuristic)

The file must start with “MZ” — a Windows executable (PE).
All patterns in the rule must match.

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References

https://github.com/mandiant/red_team_tool_countermeasures/

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

6a9a114928554c26675884eeb40cc01b

Licence & attribution

Author: FireEye

Source repository: Mandiant red team tool countermeasures @ 3561b71724

Licence: BSD 2-Clause License (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: e593b589-747d-53c2-a39a-57485e4f7641

Metadata

rev	3

Tags:FILE

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